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根據百分率找數量（二）: 例4
Author:
GeoGebra Institute of Hong Kong
Topic:
Percentages
GeoGebra
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【案例】2013年安徽高考15题
異分母分數減法
探究三角形的全等條件
讀磅
画直线等分三角形的面积
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test geogebra 5.0
小學數學比賽 2014
vbvbvbvc
sin, cos, tan 圖像
面積趣味題
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Curve Sketching
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